700c wheelset asymmetric 50mm deep aero clincher carbon road bike wheels WRC 50A in Bicycle Wheel from Sports Entertainment

700c wheelset asymmetric 50mm deep aero clincher carbon road bike wheels WRC 50A in Bicycle Wheel from Sports Entertainment
700c wheelset asymmetric 50mm deep aero clincher carbon road bike wheels WRC 50A in Bicycle Wheel from Sports Entertainment
700c wheelset asymmetric 50mm deep aero clincher carbon road bike wheels WRC 50A in Bicycle Wheel from Sports Entertainment
700c wheelset asymmetric 50mm deep aero clincher carbon road bike wheels WRC 50A in Bicycle Wheel from Sports Entertainment
700c wheelset asymmetric 50mm deep aero clincher carbon road bike wheels WRC 50A in Bicycle Wheel from Sports Entertainment
700c wheelset asymmetric 50mm deep aero clincher carbon road bike wheels WRC 50A in Bicycle Wheel from Sports Entertainment

Product Specification

Brand Name: BTLOS

Spoke Hole: 20-28H

is_customized: Yes

Size: 700c

Finishing: Matte

Applicable Bicycle: Road Bicycles

Wheel Material: CARBON

Model Number: WRC-50A

Braking System: V Brake

Weave: UD

Vesion: Disc / (NO Disc Grid barking surface)

Rim Type: Clincher

Tubeless Compatible: Yes

Freehub Body: Shimano Road 11s

Hub Ratvhet: Default

Nipple: Sapim Aluminium black

Decal: BTLOS Black Decals

Max Spoke Tension: 120

Max Tire Pressure: 120psi

Warranty: 2 years



The BTLOS carbon fiber road rims focuses on improving riding comfort, faster average speed, greater braking capacity or lighter weight, which are the direction we are constantly researching.


The WRC-50A wheelset is called Middle Profile aerodynamics rim, and the aerodynamic wheelset usually has a higher depth. The typical aerodynamic rim height starts at about 40 mm. In recent years, with the improvement of aerodynamic design, these middle profile wheelsets have been widely used. Unlike some high-profile wheelsets, the middle profile wheelsets provide a reasonable balance between low weight, riding quality and improved performance


1.Ultralight Construction; 2.One Piece Winding; 3.Smooth Inside Wall; 4.CNC 3D Drilling; 5. Bead Lock

Material T700+T800

TORAY Carbon Fiber Composite Materials.In the field of carbon fiber composite materials, they are the world's leading manufacturer of PAN-based carbon fibers.These materials in various forms are used in aerospace and many other applications.


BTLOS applies firsthand knowledge and research, along with industry-leading materials and technologies to create rims and wheels that are optimized to deliver extremely light weights without sacrificing the strength and durability demanded by the world's best riders.


In addition to the appearance UD / 3K / 12K, there is usually an option to choose between matte finish and glossy finish for carbon rims.


The small ridges on either side of the drop channel help secure tubeless tires with a floor pump, and they are incredibly hard to burp.


The width of the BTLOS road rim is 17mm. It can be compatible with 23-25c tires. The wider tires not only have faster rolling speed, but also have more flexibility when paired with reasonable rims, because they provide more The inner tube air intake and better aerodynamic performance provide a more comfortable ride texture, improved vehicle handling, lower rolling resistance and possibly fewer ground planes.


Extremely high heat resistance at the brake, testing TG values up to 250 degrees at 100pis test conditions. Ordinary rim TG can only reach 180 degrees. By incorporating graphene into our design we are able to increase braking power by 50% in all conditions while limiting heat build-up to less than 150 degrees. These improvements lead to a more durable, stronger brake track along with improved braking performance in wet conditions and during long descents. Our new brake track can also include a patterned surface specific to customer requirements or specifications.


Since the rims do not have the weaknesses associated with the various components of any of the different designs, they are continuously molded using techniques known as "one-piece molding".Because of this, the rims are perfectly symmetrical and evenly rolled.


BTLOS can drill spoke hole angles to match or compliment the spoke angles created by hub flange(as provided by the customer). Matching the spoke hole drilling angle in the rim to the spoke angle of the hub/hub flange allows the nipple to be better aligned with the spoke when the wheel is tensioned resulting in fewer broken spokes and nipples.


If the profile of the rim is shaped to be more streamlined, the airflow will flow closer to the surface of the rim, so the turbulent wake generated on the leeward side will be more narrow. This results in a much lower pressure zone and a smaller differential pressure.


The DT Swiss road hub has a denser ratchet that provides a better performance experience on all types of roads.


Our wheels use sapim spokes and nipples, because SAPIM has been producing high quality spokes and nipples for more than 90 years and is known for it's high quality spokes. It is best choice for many large factories to prepare advanced wheelset.


We also offer sapim brass/aluminum nipples, the most special being the exclusive patented SILS anti-loose technology, which reduces the chance of loosening the aluminum head and is the first choice for CX-Ray spokes.


The CX-Ray still receives one of the best results in fatigue testing of any spoke. It's unique strength and flexibility make the CX-Ray suitable for most bicycle disciplines.


All of our wheels are hand-set wheels, and the wheel data is calculated by machine to accurately calculate the axial and radial yaw and the tension of each spoke to ensure that each set is optimal.




BTLOS warranty it's products to be free from defects in materials or workmanship for a period of 2 years from the date of original purchase.

ABOUT PRODUCTS--------------1

What is UD/3K/12K? What is the difference?

It is just for aesthetics and does not significantly impact performance and weight.

Can I purchase rims without holes or internal holes?

We can make fully UST rims or internal holes accordingly (No spoke holes on the rim bed, only valve holes).

How do I choose the rim that best suits my riding style?

Please contact us by email and provide the following information, we will recommend the rim that best suits you. What the terrain do you plan to ride on? Do you ride aggressively? Can you tell me what size tire you plan to ride, and on what bike? What’s your weight? Then we can give you a corresponding recommendation.

Should I choose the symmetrical rims or asymmetric rims?

Strong wheels can be built using symmetric or asymmetric rims. For asymmetrical rims, they provide better spoke tension balance between drive-side and non-drive side by improving the bracing angle, to make wheels more durable.

Can I choose the custom color of BTLOS decal to match the bike?

Free BTLOS decals are a good choice. Custom color options available to match your bike.

Can I choose the custom decal?

Sure, custom decal cost will be determined by color and pattern, please contact us if you need the custom decal to get the corresponding quote.

ABOUT PAYMENT-------------2

What payment options are available?

The following payment methods are accepted. Paypal, Bank transfer, west union, credit cards, money gram and Alipay.

ABOUT SHIPMENT--------------3

How soon will you ship my rims/wheelsets after I arranged the payment?

If the rims or wheelsets are in stock, we will ship them within 3 business days. If there is no stock, it will take 7~15 days for rims manufacturing.

What can I do if I receive a damaged parcel?

Your rims/wheels will be packed and protected carefully to make sure that they are in good conditions. If an order arrives at you with obvious shipping damage, please refuse to sign for it. Then the package will be returned to BTLOS and we'll redo the products for you or arrange a refund. f you have signed for the package and then find shipping damage, please contact us immediately. We will help you to solve the problem as soon as possible. Please save all packaging and paperwork for the order if shipping damaged.

What shipping method do you use?

Normally, we ship the products by EMS directly. It takes about 5~10 business days for your parcel to arrive. If the customer wants to use a faster shipping method, like DHL, FedEx, UPS, TNT etc, please contact us, you may need to pay additional shipping charges. Delivery time depends on destination and other factors. If you have not received your shipment within 20 days of payment, please feel free to contact us. We will track the shipment and get back to you as soon as possible. If you still do not receive the package for 2 months, we will arrange to redo the products for you or arrange a refund.

Are there any import taxes or customs charges that I need to be aware of if I purchase this and have it shipped here to XXX country?

We understand that you are worried about any possible extra cost for this item. Based on past experience, import taxes fall into two situations. First, in most countries, it did not involve any extra expense on the buyer side for similar small or low-cost items. Second, in some individual cases, buyers might need to pay some import taxes or customs charges even when their purchase is small. As to specific rates, please consult your local customs office. Taxes are not included in item prices or shipping charges. When products are shipped to your country, they may charge customs fees, customs duties. Whether they charge you is beyond our control. Some countries will need to pay taxes when they stop checking. Therefore, please pay taxes to the customs or express in time! If you need further clarification, please contact us. We can make a low-value invoice to help you clearing customs and pay fewer taxes. If you have any specific request on this, please contact us by email. We will do our best to help you solve the problem on your side. We also work with XDB shipping company which provides the free tax shipping. If you are interested, please contact us directly.


Xiamen Btlos Bicycle Co., Ltd. is a professional manufacturer focused on the design, development, and production of carbon fiber bicycle road rims, carbon mountain bike rims, carbon fat bike rims, and carbon wheelsets. After many years as an OEM manufacturer/supplier, in 2017, BTLOS launched our consumer website making our years of quality and manufacturing expertise available direct to the consumer at the retail level for the very first time.


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